Tub rail cover



FIG. 1 is a front left side perspective view of the tub rail cover of the present invention, the tub rail and knob do not form part of the claimed design;

FIG. 2 is a view as in FIG. 1, without the tub rail and knob; and,

FIG. 3 is a rear right side perspective view thereof.

The broken line showing of surface ornamentation and tub rail in FIG. 1 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a tub rail cover, as shown and described. 